TY - JOUR AU - Benyó-Korcsmáros, Réka AU - Gulyás, Sándor AU - Sebők, Dániel AU - Benyó, Dániel AU - Cseh, Péter AU - Sümegi, Pál TI - Methodological add-ons to a non-destructive, micro-CT-based taxonomic/morphometric analysis of characean remains JF - GEOLOGOS J2 - GEOLOGOS VL - 29 PY - 2023 IS - 2 SP - 69 EP - 75 PG - 7 SN - 1426-8981 DO - 10.14746/logos.2023.29.2.08 UR - https://m2.mtmt.hu/api/publication/34108335 ID - 34108335 N1 - Funding Agency and Grant Number: NKFIH [129265] Funding text: We wish to thank Emese Bodor (Department of Palaeontology, Institute of Geography and Earth Sciences, ELTE Eoetvoes Lorand University, Budapest) for the samples from Iharkut. We are grateful to Livia Vasarhelyi and the Department of Applied and Environmental Chemis-try, University of Szeged for the assistance in micro-CT scanning and we would like to thank Akos Kukovecz for the opportunity. We wish to acknowledge NKFIH Grant 129265 for their support. The manuscript was considerably improved by valuable comments from two anonymous reviewers. AB - Ever since its introduction, computed tomography has come a long way. No longer is it merely a method that is used in clinical diagnostics, but it is becoming more and more popular among palaeontologists because it can be used to analyse both external and internal structures of fossil remains, such as small insects, snail shells and plant remains. The present study describes non-destructive analyses of Late Cretaceous and early Holocene charophyte gyrogonites by using the micro-CT technique, from sample preparation (embedding, fixing) to visualisation and assessment of images obtained. In addition to this non-destructive examination, we wished to test whether or not computed tomography could be used to examine the gyrogonites. Our preliminary results have made it clear that the micro-CT technique is worth employing for further research. It has proved possible to visualise the samples in 3D, rotate them, and observe them from different directions. By using the appropriate parameters, we have also been able to observe density differences between parts of characean remains and to study several important defining features of these. LA - English DB - MTMT ER - TY - JOUR AU - Makó, László AU - Cseh, Péter AU - Nagy, Balázs AU - Sümegi, Pál AU - Molnár, Dávid TI - Development History of the Loess–Paleosol Profiles of Pécel, Kisdorog and Bonyhádvarasd, Hungary JF - QUATERNARY J2 - Quaternary VL - 6 PY - 2023 IS - 3 PG - 21 SN - 2571-550X DO - 10.3390/quat6030038 UR - https://m2.mtmt.hu/api/publication/34047615 ID - 34047615 AB - This study covers the examination of four loess–paleosol profiles in Hungary through grain size composition, organic matter, carbonate content and magnetic susceptibility measurements. One of the profiles (with a thickness of 25.72 m) can be found in the Gödöllő hills, on the border of town Pécel, and the other three profiles (Kisdorog-West—5.60 m, Kisdorog-East—6.40 and Bonyhádvarasd—8.16 m) are located in the Tolna hills of the Transdanubia region. The sections were continuously sampled with an interval of 4 cm. The same interval was also applied to the other three profiles. During the field exploration of the Pécel profile, we were able to study the complete loess wall, which was deposited on the sediment of the nearby Rákos stream. Based on the Ostracod fauna of the clay sediment beneath, the fluvial deposit can be considered as originating from the Upper Miocene. In the case of the Transdanubian sections, a significant change can be observed in the prevailing wind direction based on the grain size analyses. In addition, the results of magnetic susceptibility measurements suggest that the development of the Pécel profile took place during MIS 9–10, while the age of the three Transdanubian sections can be assumed to be the MIS 2–4. LA - English DB - MTMT ER - TY - JOUR AU - Sümegi, Pál AU - Molnár, Dávid AU - Gulyás, Sándor AU - Stevens, T AU - Makó, László AU - Cseh, Péter AU - Molnár, Mihály AU - Fitzsimmons, K AU - Nett, JJ. AU - Hlavatskyi, D AU - Lehmkuhl, F TI - Comparison of High-Resolution 14C and Luminescence-Based Chronologies of the MIS 2 Madaras Loess/Paleosol Sequence, Hungary: Implications for Chronological Studies JF - QUATERNARY J2 - Quaternary VL - 5 PY - 2022 IS - 4 PG - 19 SN - 2571-550X DO - 10.3390/quat5040047 UR - https://m2.mtmt.hu/api/publication/33240955 ID - 33240955 N1 - Department of Geology and Paleontology, University of Szeged, Szeged, H-6722, Hungary Interdisciplinary Excellence Centre, Institute of Geography and Earth Sciences, Long Environmental Changes Research Team, University of Szeged, Szeged, H-6722, Hungary Department of Earth Sciences, University of Uppsala, Uppsala, 75236, Sweden Isotope Climatology and Environmental Research Centre, Institute for Nuclear Research, Eötvös Lóránd Research Network, Bem square 18/c, Debrecen, H-4026, Hungary Department of Geosciences, University of Tübingen, Tübingen, 72076, Germany Physical Geography and Geoecology, Department of Geography, RWTH Aachen University, Aachen, 52062, Germany Institute of Geophysics, National Academy of Sciences of Ukraine, Kyiv, 01030, Ukraine Export Date: 4 January 2023 Correspondence Address: Sümegi, P.; Department of Geology and Paleontology, Hungary; email: sumegi@geo.u-szeged.hu AB - Numerous loess/paleosol sequences (LPS) in the Carpathian Basin span the period of Marine Isotope Stage (MIS) 2 and the last glacial maximum (LGM). Nevertheless, only two known records—Madaras and Dunaszekcső—preserve highly resolved records with absolute chronologies with minimal uncertainties, which enable the meaningful assessment of feedbacks and short-term climatic fluctuations over this period. The Madaras profile is located at the northern margin fringe of the Bácska loess plateau; Dunaszekcső, located on the Danube to its west, yields a chronology built on over 100 14C dates yet spans only part of MIS 2, missing half of the LGM including its peak. Here, we add to the previously published 14C chronology for Madaras (15 dates) with an additional 17 14C and luminescence ages. Resulting age models built solely on quartz OSL and feldspar pIRIRSL data underestimate the 14C based chronology, which is likely based on inaccuracies related to luminescence signal behavior; we observe age underestimations associated with unusual quartz behavior and significant signal loss, a phenomenon also observed in Serbian and Romanian loess, which may relate to non-sensitized grains from proximal sources. Our new chronology provides higher resolution than hitherto possible, yielding consistent 2 sigma uncertainties of ~150–200 years throughout the entire sequence. Our study indicates that the addition of further dates may not increase the chronological precision significantly. Additionally, the new age model is suitable for tackling centennial-scale changes. The mean sedimentation rate based on our new age-depth model (10.78 ± 2.34 years/cm) is the highest yet recorded in the Carpathian Basin for MIS 2. The resolution of our age model is higher than that for the Greenland NGRIP ice core record. The referred horizons in our profile are all characterized by a drop in accumulation and a higher sand input, the latter most likely deriving from nearby re-exposed sand dunes. LA - English DB - MTMT ER - TY - CHAP AU - Benyó-Korcsmáros, Réka AU - Gulyás, Sándor AU - Sebők, Dániel AU - Benyó, Dániel AU - Cseh, Péter AU - Sümegi, Pál ED - Bosnakoff, Mariann ED - Virág, Attila ED - Szives, Ottilia ED - Főzy, István TI - Módszertani adalékok a Chara-maradványok nem-destruktív, mikro-CT alapú taxonómiai-morfometriai elemzéséhez T2 - 25. Magyar Őslénytani Vándorgyűlés, Tótvázsony, 2022 Program, előadáskivonatok, kirándulásvezető PB - Magyarhoni Földtani Társulat CY - Budapest SN - 9789638221872 PY - 2022 SP - 7 EP - 7 PG - 1 UR - https://m2.mtmt.hu/api/publication/33140988 ID - 33140988 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Cseh, Péter AU - Molnár, Dávid AU - Makó, László AU - Sümegi, Pál TI - Geoarchaeological Analyses of a Late-Copper-Age Kurgan on the Great Hungarian Plain JF - QUATERNARY J2 - Quaternary VL - 5 PY - 2022 IS - 2 PG - 19 SN - 2571-550X DO - 10.3390/quat5020020 UR - https://m2.mtmt.hu/api/publication/32776652 ID - 32776652 N1 - Department of Geology and Paleontology, University of Szeged, Szeged, H-6722, Hungary Long Environmental Changes Research Team, Interdisciplinary Excellence Centre, Institute of Geography and Earth Sciences, University of Szeged, Szeged, H-6722, Hungary Export Date: 23 May 2022 Correspondence Address: Cseh, P.; Department of Geology and Paleontology, Hungary; email: cspeter@geo.u-szeged.hu LA - English DB - MTMT ER - TY - JOUR AU - Sümegi, Pál AU - Molnár, Dávid AU - Náfrádi, Katalin AU - Makó, László AU - Cseh, Péter AU - Törőcsik, Tünde AU - Molnár, Mihály AU - Zhou, Liping TI - Vegetation and land snail-based reconstruction of the palaeocological changes in the forest steppe eco-region of the Carpathian Basin during last glacial warming JF - GLOBAL ECOLOGY AND CONSERVATION J2 - GLOB ECOL CONSERV VL - 33 PY - 2022 PG - 28 SN - 2351-9894 DO - 10.1016/j.gecco.2021.e01976 UR - https://m2.mtmt.hu/api/publication/32544836 ID - 32544836 N1 - Funding Agency and Grant Number: Hungarian Government, Ministry of Human Capacities [20391-3/2018/FEKUSTRAT]; European Regional Development Fund [GINOP-2.3.2-15-2016-00009 'ICER']; University of Szeged Open Access Fund [5386]; Hungarian National Excellence Programme grant [NTP-NFTOd-19-B-0158] Funding text: This research was supported by the Hungarian Government, Ministry of Human Capacities (20391-3/2018/FEKUSTRAT) and the European Regional Development Fund (GINOP-2.3.2-15-2016-00009 'ICER') and the University of Szeged Open Access Fund (no. 5386) . D. Molnar would like to thank the support of the Hungarian National Excellence Programme grant (NTP-NFTOd-19-B-0158) . LA - English DB - MTMT ER - TY - JOUR AU - Sümegi, Pál AU - Gulyás, Sándor AU - Molnár, Dávid AU - Bozsó, Gábor AU - Fekete, István AU - Makó, László AU - Cseh, Péter AU - Molnár, Mihály AU - Sümegi, Balázs P. AU - Almond, Peter AU - Zeeden, Christian AU - Törőcsik, Tünde AU - Nett, Janina J. AU - Markó, András AU - Lehmkuhl, Frank TI - New chronology and extended palaeoenvironmental data to the 1975 loess profile of Madaras brickyard, South Hungary JF - JOURNAL OF QUATERNARY SCIENCE J2 - J QUATERNARY SCI VL - 36 PY - 2021 IS - 8 SP - 1364 EP - 1381 PG - 18 SN - 0267-8179 DO - 10.1002/jqs.3382 UR - https://m2.mtmt.hu/api/publication/32471189 ID - 32471189 N1 - Special Issue: Pleistocene geoarchaeology and palaeoenvironments in European loess LA - English DB - MTMT ER - TY - JOUR AU - Tapody, Réka Orsolya AU - Sümegi, Pál AU - Molnár, Dávid AU - Karlik, Máté AU - Törőcsik, Tünde AU - Cseh, Péter AU - Makó, László TI - Sedimentological-Geochemical Data Based Reconstruction of Climate Changes and Human Impacts from the Peat Sequence of Round Lake in the Western Foothill Area of the Eastern Carpathians, Romania JF - QUATERNARY J2 - Quaternary VL - 4 PY - 2021 IS - 2 PG - 29 SN - 2571-550X DO - 10.3390/quat4020018 UR - https://m2.mtmt.hu/api/publication/32064831 ID - 32064831 N1 - Department of Geology and Palaeontology, University of Szeged, Egyetem Str. 2-6, Szeged, H-6722, Hungary Isotope Climatology and Environmental Research Centre, Institute for Nuclear Research, Bem Square 18/c, Debrecen, H-4026, Hungary Institute for Geological and Geochemical Research, RCAES, Budaörsi Str. 45, Budapest, H-1112, Hungary Export Date: 23 May 2022 Correspondence Address: Sümegi, P.; Department of Geology and Palaeontology, Egyetem Str. 2-6, Hungary; email: sumegi@geo.u-szeged.hu LA - English DB - MTMT ER - TY - JOUR AU - Makó, László AU - Molnár, Dávid AU - Runa, B AU - Bozsó, Gábor AU - Cseh, Péter AU - Nagy, Balázs AU - Sümegi, Pál TI - Selected Grain-Size and Geochemical Analyses of the Loess-Paleosol Sequence of Pécel (Northern Hungary): An Attempt to Determine Sediment Accumulation Conditions and the Source Area Location JF - QUATERNARY J2 - Quaternary VL - 4 PY - 2021 IS - 2 PG - 13 SN - 2571-550X DO - 10.3390/quat4020017 UR - https://m2.mtmt.hu/api/publication/32042290 ID - 32042290 LA - English DB - MTMT ER - TY - JOUR AU - Molnár, Dávid AU - Sümegi, Pál AU - Makó, László AU - Cseh, Péter AU - Zeeden, C AU - Nett, J AU - Lehmkuhl, F AU - Törőcsik, Tünde AU - Sümegi, BP. TI - Palaeoecological background of the Upper Palaeolithic site of Ságvár, Hungary: radiocarbon‐dated malacological and sedimentological studies on the Late Pleistocene environment JF - JOURNAL OF QUATERNARY SCIENCE J2 - J QUATERNARY SCI VL - 36 PY - 2021 IS - 8 (SI) SP - 1353 EP - 1363 PG - 11 SN - 0267-8179 DO - 10.1002/jqs.3306 UR - https://m2.mtmt.hu/api/publication/32017843 ID - 32017843 N1 - Funding Agency and Grant Number: Hungarian Human Resource Development Operational Programme [EFOP-3.6.1-16-2016-00008]; Ministry of Human Capacities, Hungary [20391-3/2018/FEKUSTRAT]; European Regional Development Fund [GINOP-2.3.2-15-2016- 00009] Funding text: This research was supported by the Hungarian Human Resource Development Operational Programme under project code: EFOP-3.6.1-16-2016-00008, Ministry of Human Capacities, Hungary grant 20391-3/2018/FEKUSTRAT, European Regional Development Fund grant GINOP-2.3.2-15-2016- 00009 'ICER'. LA - English DB - MTMT ER -